Throttle

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look pretty bad though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them. Good luck.

The lightning bolt thingy is supposed to represent the throttle body butterfly valve. The check engine light (CEL) may also be on. If so, get the codes from the pcm (local chain auto parts places will normally do it for free). The light you have does not simply mean you may have a problem with your throttle body butterfly valve.... it actually involves more possible components. The pcm tries to regulate the air/fuel mixture going into the engine to get a good efficient burn for optimum power, conservation of fuel, and low emissions. If too much air is getting into the system (vacuum leak) the pcm will deteck a lean condition (since too much air in the air/fuel mix translates to too little fuel to the pcm). And the pcm will command the fuel injectors to send in more fuel in an attempt to get the air to fuel ration back in line. More air and more fuel will make the engine rpms higher...no problem, the pcm simply commands the throttle body butterfly valve to close to compensate. And so, with this problem...your vehicle may sound completely the same to you because the pcm is compensating for the problem(s). That seems fine, and kind of is fine....up to a point. Actually, over a long time of running this way your catalytic converter(s) may suffer from getting more uncombusted fuel than they can handle. At that point you may get CEL for O2 sensor problems. You may replace the 02 sensors and seem to fix the problem...but it does not truly fix the problem because you are treating the symptoms and not the problem. But now back to the lightning bolt light. If your pcm tries to handle the problem by putting in more or less fuel and/or putting in more or less air but finds that no matter how far it pushes to compensate that it still is not getting an acceptable air/fuel mix ratio..... then it turns on the lightning bolt. So you see it all makes sense once you get the big picture. If you find and fix the vacuum leak early enough, the pcm will put all of its correction back to near base line and the 02 sensors will be happy and so will the catalytic converter. The spark plugs will look like $@&* though. You might want to replace them (or possibly just clean them up really well). Oh, the vacuum leak? Tons of videos on how to find them out there...should be no problem.